Results 131 to 140 of about 769 (175)

Glucan affinity of starch synthase IIa determines binding of starch synthase I and starch-branching enzyme IIb to starch granules

Biochemical Journal, 2012
The sugary-2 mutation in maize (Zea mays L.) is a result of the loss of catalytic activity of the endosperm-specific SS (starch synthase) IIa isoform causing major alterations to amylopectin architecture. The present study reports a biochemical and molecular analysis of an allelic variant of the sugary-2 mutation expressing a catalytically inactive ...
Liu, Fushan, Romanova, Nadya, Lee, Elizabeth A., Ahmed, Regina, Evans, Martin, Gilbert, Elliot P., Morell, Matthew K., Emes, Michael J., Tetlow, Ian J.   +8 more
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Blue Maize: Morphology and Starch Synthase Characterization of Starch Granule

Plant Foods for Human Nutrition, 2009
The use of pigmented maize varieties has increased due to their high anthocyanins content, but very few studies are reported about the starch properties of these grains. The aim of this work was to isolate the starch granules from pigmented blue maize and carry out the morphological, physicochemical, and biochemical characterization studies.
Rubi G, Utrilla-Coello, Edith, Agama-Acevedo, Ana Paulina Barba, de la Rosa, Jose L, Martinez-Salgado, Sandra L, Rodriguez-Ambriz, Luis A, Bello-Perez   +5 more
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Structure of starch synthase I from barley: insight into regulatory mechanisms of starch synthase activity

Acta Crystallographica Section D Biological Crystallography, 2013
Starch, a polymer of glucose, is the major source of calories in the human diet. It has numerous industrial uses, including as a raw material for the production of first-generation bioethanol. Several classes of enzymes take part in starch biosynthesis, of which starch synthases (SSs) carry out chain elongation of both amylose and amylopectin.
Jose A, Cuesta-Seijo, Morten M, Nielsen, Lucia, Marri, Hidenori, Tanaka, Sophie R, Beeren, Monica M, Palcic   +5 more
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In vitro studies of enzymatic properties of starch synthases and interactions between starch synthase I and starch branching enzymes from rice

Plant Science, 2014
The present study was conducted to characterize the functions of the major starch synthase (SS) isozymes SSI, SSIIa, and SSIIIa in rice endosperm and their functional interaction with starch branching enzyme (BE), by using their purified recombinant proteins.
Yasunori, Nakamura, Satomi, Aihara, Naoko, Crofts, Takayuki, Sawada, Naoko, Fujita   +4 more
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Contribution of sucrose synthase, ADP‐glucose pyrophosphorylase and starch synthase to starch synthesis in developing pea seeds

Plant, Cell & Environment, 1997
ABSTRACTUsing genetic variability existing amongst nine pea genotypes (Pisum sativum L.), the biochemical basis of sink strength in developing pea seeds was investigated. Sink strength was considered to be reflected by the rate of starch synthesis (RSS) in the embryo, and sink activity in the seed was reflected by the relative rate of starch synthesis (
Dejardin, Annabelle, Rochat, Christine, Wuillème, Sylvie, Boutin, J.P.   +3 more
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The Effect of High Temperature on Starch Synthesis and the Activity of Starch Synthase

Australian Journal of Plant Physiology, 1994
The decrease in yield which is observed when developing storage organs such as cereal grains or potato tubers are exposed to high temperatures is due to a lower final starch content. The rate of starch synthesis during the development of these storage organs at high temperature, is either reduced or fails to increase sufficiently to compensate for the ...
K Denyer, CM Hylton, AM Smith
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Starch synthases and starch branching enzymes from Pisum sativum

Phytochemistry, 1981
Abstract Concentrations of ADPglucose:α-1,4-glucan-4-glucosyltransferase (starch synthase) and α-1,4 glucan: α-1,4-glucan-6-glycosyltransferase (branching enzyme) from developing seeds of Pisum sativum were measured. Primed starch synthase activity increased from 8 to 14 days after anthesis and decreased by 50 % at 26 days.
Gail L. Matters, Charles D. Boyer
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Maize leaf and kernel starch synthases and starch branching enzymes

Phytochemistry, 1988
Abstract Soluble starch synthases and branching enzymes were partially purified from developing leaves and kernels of maize using DEAE-cellulose chromatography. One form of starch synthase and two forms of branching enzyme were detected in leaves as compared to two forms of starch synthase and three forms of branching enzyme isolated from the kernels.
Peter L. Dang, Charles D. Boyer
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Starch‐synthase III family encodes a tandem of three starch‐binding domains

Proteins: Structure, Function, and Bioinformatics, 2006
AbstractThe starch‐synthase III (SSIII), with a total of 1025 residues, is one of the enzymes involved in plants starch synthesis. SSIII from Arabidopsis thaliana contains a putative N‐terminal transit peptide followed by a 557‐amino acid SSIII‐specific domain (SSIII‐SD) with three internal repeats and a C‐terminal catalytic domain of 450 amino acids ...
Nicolás, Palopoli, María Victoria, Busi, María Silvina, Fornasari, Diego, Gomez-Casati, Rodolfo, Ugalde, Gustavo, Parisi   +5 more
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Molecular Structure of Starches from Maize Mutants Deficient in Starch Synthase III

Journal of Agricultural and Food Chemistry, 2013
Molecular structures of starches from dull1 maize mutants deficient in starch synthase III (SSIII) with a common genetic background (W64A) were characterized and compared with the wild type. Amylose content with altered structure was higher in the nonwaxy mutants (25.4-30.2%) compared to the wild type maize (21.5%) as revealed by gel permeation ...
Fan, Zhu, Eric, Bertoft, Anna, Källman, Alan M, Myers, Koushik, Seetharaman   +4 more
openaire   +2 more sources